title: Implementation of the European water framework directive from the Basque country (northern Spain): a methodological approach.
mesh_terms: D004463:Ecology; D017753:Ecosystem; D004784:Environmental Monitoring / Q000592:standards*; D004787:Environmental Pollution / Q000032:analysis / Q000517:prevention & control*; D005060:Europe; D019983:Guideline Adherence; D007391:International Cooperation; D011786:Quality Control; D012016:Reference Values; D013030:Spain; D014873:Water Pollutants / Q000032:analysis
chemical_list: D014873:Water Pollutants